Frequently asked questions

General Questions

What is HPMC?

HPMC, short-term for Hydroxy Propyl Methyl Cellulose, AKA Hypromellose.

HPMC is a polymer obtained from plants, cotton, or wood pulp. It’s an Odorless, tasteless, non-toxic white powder, and is greatly used in construction materials, medicine and nutrition, food additives, household, and personal care products.

What are the characteristics of HPMC?

HPMC has the effect of thickening, water retention, PH stability, excellent film formation, sag resistance, enzyme resistance, dispersion, and cohesion.

What are the purposes of HPMC for construction?

HPMC is a non-ionic cellulose, the original raw material is a natural polymer going through chemical processing. It’s the perfect choice for high-quality construction materials additives. Generally, it’s in use for interior and exterior wall putty, dry mix mortar, adhesives, coatings, and self-leveling agents.

How many types of HPMC are available on the market?
Depend on its viscosity level. There are 4 types of HPMC in use generally.
Low viscosity with 400 mPa s, used for self-leveling mortar.
Medium and low viscosity with 20,000-40,000 mPa s, used for tile adhesive, joint filler, anti-cracking mortar, thermal insulation mortar and etc.
Medium viscosity with 75,000-100,000 mPa s, used for wall putty.
High viscosity with 150,000-200,000 mPa s, for thermal insulation mortar powder.
Depend on its dissolving method. There are 2 types of HPMC: fast-dissolving and hot-dissolving.
HPMC dissolves fast in cold water, after 2 minutes, the viscosity level increases to form a transparent viscous liquid. The majority of usage is putty powder, mortar, liquid glue, and coatings.
The hot-dissolving HPMC only shows viscosity when the temperature drops to a certain level. Primarily in use for putty powder and mortar.
What’s the difference between HPMC and HEMC?
The major difference between HPMC and HEMC is gel temperature.
HPMC at around 60°C~75°C and HEMC >80°C normally. It depends on different production technology as well. In summer, HEMC water retention capacity remains the same viscosity and dosage, especially in hot weather like in India. HPMC with lower gel temperature will lose thickening and water retention effect in a hot environment, therefore accelerating the hardening of mortar.
HPMC uses fine cotton as raw material to go through the alkalization process, plus etherification agents propylene oxide and methyl chloride, then formulate a non-ionic cellulose ether HPMC.
The production process of HEMC is similar to that of HPMC, the only difference is etherification agents, instead of propylene oxide and methyl chloride, HEMC uses ethylene oxide and methyl chloride. Because ethylene oxide requires more advanced production technology, and due to its storage condition, risk control, and less manufacturer, thus the price of HEMC is higher.

Sales Questions

How long does it take to receive my order?

The lead time is 7 to 30 days normally, but due to covid-19 pandemic, the delivery may be delayed, but we will ship out as soon as possible once we have the green light.

What's the minimum order weight?

The minimum order quantity is 25kg.

How many grams of free samples do you offer?

We offer 200 to 600-gram samples of each product that you need.

How to store HPMC properly?

Avoid direct sunlight, keep it away from air radiator, water or steam pipes.

what's the dosage of HPMC on wall putty/skim coat?

Based on the stated amount and proportion provided, you may use it as normal, or adjust it due to your standard practice.

After Purchase Questions

Could you show me how to prepare HPMC?

According to the provided formula, add 1-2 parts of HPMC into 50-100 parts of absolute ethyl alcohol, stir it and make HPMC fully dissolved, after that slowly add 5-10 parts of water, continue stirring, and leave it for 10-30 minutes, then you get a transparent, gelling texture of HPMC liquid.

How do you guarantee your product quality?

Quality is the basic foundation and crucial factor to our business, we only provide premium quality at a reasonable price. Our QA inspector is stationed in our factory and they check every link from sourcing to production.

Do you also provide pharmaceutical grade HPMC?

Not at the moment, but we will provide more categories in the future.

How many gram is your free sample?

Each bottle contains 200 grams, we offer 200-600 grams depend on your needs.

How many types of polypropylene fibers do you have?

Polypropylene fibers mainly include two categories: microfibers and macro fibers. We manufacture and supply macro fibers only.

Getting Started Questions

Why there are bubbles in putty powder after adding HPMC?

Probably because too much water was added to it.

What grade of HPMC do you suggest for tile adhesives?

HPMC for tile adhesive, we suggest you choose WP 70000 or TP 70000. All ingredients are carefully selected and tested. The latter is our premium collection, made from relatively high-quality raw materials. Hence the price is slightly higher.

Is your product viscosity level higher than other brands in the market?

Yes, compared with other brands, our product viscosity is slightly higher. Our intention is to help you reduce the amount so that to cut costs.

What is the HPMC polymer uses?
HPMC is frequently used in cellulosic polymer and is available in multiple grades. According to different molecular weights and viscosity levels. It can be used for adhesion, bonding, thickening, film-forming, emulsification, and gelation.
What is the main purpose for HPMC in detergent?

HPMC is a safe ingredient in household & personal care. HPMC has good dispersion in cold water, with a good thickening effect and foam stability.

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